Java Tap类代码示例

import android.support.test.espresso.action.Tap; //导入依赖的package包/类
/**
 * Returns an action that clicks a descendant of the view matched with the given resource id.
 *
 * @param id resource id of the view to click.
 * @return an action that clicks a descendant of the view matched with the given resource id.
 */
public static ViewAction clickDescendantViewWithId(@IdRes final int id) {
    return new ViewAction() {

        @Override
        public Matcher<View> getConstraints() {
            return hasDescendant(withId(id));
        }

        @Override
        public String getDescription() {
            return "Click on a descendant view with id: " + id;
        }

        @Override
        public void perform(UiController uiController, View view) {
            GeneralClickAction action = new GeneralClickAction(Tap.SINGLE, GeneralLocation.VISIBLE_CENTER, Press.FINGER);
            View target = view.findViewById(id);
            // getConstraints() guarantees that the target never be null.
            action.perform(uiController, target);
        }
    };
}
 

import android.support.test.espresso.action.Tap; //导入依赖的package包/类
/**
 * Returns an action that clicks a descendant of the view matched with the given resource id.
 */
public static ViewAction clickDescendantViewWithId(@IdRes final int id) {
    return new ViewAction() {

        @Override
        public Matcher<View> getConstraints() {
            return hasDescendant(withId(id));
        }

        @Override
        public String getDescription() {
            return "Click on a descendant view with id: " + id;
        }

        @Override
        public void perform(UiController uiController, View view) {
            GeneralClickAction action = new GeneralClickAction(Tap.SINGLE, GeneralLocation.VISIBLE_CENTER, Press.FINGER);
            View target = view.findViewById(id);
            // getConstraints() guarantees that the target never be null.
            action.perform(uiController, target);
        }
    };
}
 

import android.support.test.espresso.action.Tap; //导入依赖的package包/类
/**
 * Custom ViewAction to click on dedicated coordinates
 * @param x -
 * @param y -
 * @return ViewAction -
 */
private ViewAction clickXY( final int x, final int y ){
    return new GeneralClickAction(
            Tap.SINGLE,
            new CoordinatesProvider() {
                @Override
                public float[] calculateCoordinates( View view ){

                    final int[] screenPos = new int[2];
                    view.getLocationOnScreen(screenPos);

                    final float screenX = screenPos[0] + x;
                    final float screenY = screenPos[1] + y;

                    return new float[]{screenX, screenY};

                }
            },
            Press.FINGER);
}
 

import android.support.test.espresso.action.Tap; //导入依赖的package包/类
private static ViewAction clickXY(final int x, final int y) {
    return new GeneralClickAction(
            Tap.SINGLE,
            new CoordinatesProvider() {
                @Override
                public float[] calculateCoordinates(View view) {

                    final int[] screenPos = new int[2];
                    view.getLocationOnScreen(screenPos);

                    final float screenX = screenPos[0] + x;
                    final float screenY = screenPos[1] + y;
                    float[] coordinates = {screenX, screenY};

                    return coordinates;
                }
            },
            Press.FINGER);
}
 

import android.support.test.espresso.action.Tap; //导入依赖的package包/类
public static ViewAction clickXY(final int x, final int y){
    return new GeneralClickAction(
            Tap.SINGLE,
            new CoordinatesProvider() {
                @Override
                public float[] calculateCoordinates(View view) {

                    final int[] screenPos = new int[2];
                    view.getLocationOnScreen(screenPos);

                    final float screenX = screenPos[0] + x;
                    final float screenY = screenPos[1] + y;
                    float[] coordinates = {screenX, screenY};

                    return coordinates;
                }
            },
            Press.FINGER);
}
 

import android.support.test.espresso.action.Tap; //导入依赖的package包/类
public static ViewAction clickPercent(final float pctX, final float pctY) {
    return new GeneralClickAction(
            Tap.SINGLE,
            view -> {

                final int[] screenPos = new int[2];
                view.getLocationOnScreen(screenPos);
                int w = view.getWidth();
                int h = view.getHeight();

                float x = w * pctX;
                float y = h * pctY;

                final float screenX = screenPos[0] + x;
                final float screenY = screenPos[1] + y;

                return new float[]{screenX, screenY};
            },
            Press.FINGER);
}
 

import android.support.test.espresso.action.Tap; //导入依赖的package包/类
public static ViewAction clickXY(final int x, final int y){
    return new GeneralClickAction(
            Tap.SINGLE,
            getCoordinatesProvider(x, y),
            Press.FINGER);
}
 

import android.support.test.espresso.action.Tap; //导入依赖的package包/类
public static ViewAction longClickXY(final int x, final int y){
    return new GeneralClickAction(
            Tap.LONG,
            getCoordinatesProvider(x, y),
            Press.FINGER);
}
 

import android.support.test.espresso.action.Tap; //导入依赖的package包/类
public static ViewAction clickOnTop() {
    return new GeneralClickAction(Tap.SINGLE, GeneralLocation.TOP_CENTER, Press.FINGER);
}
 

import android.support.test.espresso.action.Tap; //导入依赖的package包/类
public CustomClickAction() {
    this(Tap.SINGLE, GeneralLocation.VISIBLE_CENTER, Press.FINGER);
}
 

import android.support.test.espresso.action.Tap; //导入依赖的package包/类
@Override
public void perform(UiController uiController, View view) {
    float[] coordinates = coordinatesProvider.calculateCoordinates(view);
    float[] precision = precisionDescriber.describePrecision();

    Tapper.Status status = Tapper.Status.FAILURE;
    int loopCount = 0;
    // Native event injection is quite a tricky process. A tap is actually 2
    // seperate motion events which need to get injected into the system. Injection
    // makes an RPC call from our app under test to the Android system server, the
    // system server decides which window layer to deliver the event to, the system
    // server makes an RPC to that window layer, that window layer delivers the event
    // to the correct UI element, activity, or window object. Now we need to repeat
    // that 2x. for a simple down and up. Oh and the down event triggers timers to
    // detect whether or not the event is a long vs. short press. The timers are
    // removed the moment the up event is received (NOTE: the possibility of eventTime
    // being in the future is totally ignored by most motion event processors).
    //
    // Phew.
    //
    // The net result of this is sometimes we'll want to do a regular tap, and for
    // whatever reason the up event (last half) of the tap is delivered after long
    // press timeout (depending on system load) and the long press behaviour is
    // displayed (EG: show a context menu). There is no way to avoid or handle this more
    // gracefully. Also the longpress behavour is app/widget specific. So if you have
    // a seperate long press behaviour from your short press, you can pass in a
    // 'RollBack' ViewAction which when executed will undo the effects of long press.

    while (status != Tapper.Status.SUCCESS && loopCount < 3) {
        try {
            status = tapper.sendTap(uiController, coordinates, precision);
        } catch (RuntimeException re) {
            throw new PerformException.Builder()
                    .withActionDescription(
                            String.format("%s - At Coordinates: %d, %d and precision: %d, %d",
                                    this.getDescription(),
                                    (int) coordinates[0],
                                    (int) coordinates[1],
                                    (int) precision[0],
                                    (int) precision[1]))
                    .withViewDescription(HumanReadables.describe(view))
                    .withCause(re)
                    .build();
        }

        int duration = ViewConfiguration.getPressedStateDuration();
        // ensures that all work enqueued to process the tap has been run.
        if (duration > 0) {
            uiController.loopMainThreadForAtLeast(duration);
        }
        if (status == Tapper.Status.WARNING) {
            break;
        }
        loopCount++;
    }
    if (status == Tapper.Status.FAILURE) {
        throw new PerformException.Builder()
                .withActionDescription(this.getDescription())
                .withViewDescription(HumanReadables.describe(view))
                .withCause(new RuntimeException(String.format("Couldn't "
                                + "click at: %s,%s precision: %s, %s . Tapper: %s coordinate provider: %s precision " +
                                "describer: %s. Tried %s times. With Rollback? %s", coordinates[0], coordinates[1],
                        precision[0], precision[1], tapper, coordinatesProvider, precisionDescriber, loopCount,
                        false)))
                .build();
    }

    if (tapper == Tap.SINGLE && view instanceof WebView) {
        // WebViews will not process click events until double tap
        // timeout. Not the best place for this - but good for now.
        uiController.loopMainThreadForAtLeast(ViewConfiguration.getDoubleTapTimeout());
    }
}
 

import android.support.test.espresso.action.Tap; //导入依赖的package包/类
public static ViewAction clickOnChild(int childViewId) {
    return actionWithAssertions((new ChildClickAction(
            new GeneralClickAction(Tap.SINGLE, GeneralLocation.VISIBLE_CENTER, Press.FINGER),
            childViewId)));
}